Data Centers today are typically too large and too complex to consider the old methodology of “lift and shift” over a weekend. That option may look increasingly attractive as the planner comes to grips with the complexities of a phased move while the business itself carries on, and even changes its needs and priorities: Unfortunately, size and complexity today are often too great and the consequent risks too high to consider a “Big Bang” approach.
Even where a “Big Bang” approach is feasible, the planner must still work through the steps identified in this paper as the phased approach simply to ensure the applications will restart, and restart in an appropriate sequence. More typically, we see a foundational constraint in the requirement to move the infrastructure in several phases over a period of time. In this paper we will assume that we are migrating in a phased manner.
"With multiple IBM mainframe, Unix systems and peripherals the University of Louisville transitions all hardware maintenance to STG as soon as the IBM warranty period expires. Since contracting with Signature Technology Group, the University of Louisville has received a superior level of on site service. Based on a multiyear contract, STG’s original baseline pricing has remained consistent and provides the University with significant cost savings."
-University of Louisville